Lock-nut.



J. M. BALDWIN.

LOOK NUT.

APPLIUATION FILED NOV. 5, 1913.

Patented Dec. 8, 1914.

STATES ATNT QFFTCE;

JOHN M. BALDWIN, 0F WILBURTOIN, OKLAHOMA, ASSIGNOR OF ONE-HALF TO HENRY G.

AUSTIN, OF WILBURTON, OKLAHOMA. 3

LOCK-NUT.

Application filed November 5, 1913.

To all whom it may concern Be it known that 1, JOHN M. BALDW'IN, a citizen of the United States, residing at lVilburton, in the county of Latimer and State of Oklahoma, have invented new and" useful Improvements in Lock-Nuts, of which the following is a specification.

The present invention relates to improvements in nut locks, the object of the same being to provide a new and improved nut lock which is simple and durable in construction, very effective in operation and arranged to securely hold a nut against accidental turning after the nut is screwed home upon the bolt to the desired position.

The invention consists in the construction, arrangement and novel combination of parts set forth in the following specification and falling within the scope of the appended claims.

In the drawing: Figure 1 is a perspective view of the improvement, Fig. 2 is a sectional view on the line 22 of Fig. 1, Fig. 3 is a plan view looking toward the outer face of the nut, parts of the nut being broken away and shown in section, Fig. 4: is a detail perspective view of the looking member, Fig. 5 is a similar view of the cover, and Fig. 6 is a transverse sectlon on the line 50-10 of Fig. 3.

The nut 1 which is screwed upon the bolt 2 is formed upon its outer face and at its corners with slots 3 which communicate with the bore of the nut. These slots are comparatively deep and communicate with depressions at arranged right angularly of the slots within the threaded bore of the nut. The depressed portions terminate a suitable distance from the outer face of the nut, so that the said bore is provided with a sufficient number of continuous threads as to insure the strength thereof regardless of the interrupted threads provided by the depressions 4.

The threaded shank of the bolt 2 is provided with a longitudinally arranged channel or key-way 5 which is adapted to receive one of the arms of a substantially L- shaped key 6, the said arm being also received within one of the depressions 4 of the nut, and its second angular arm being received within one of the slots 3. The opposite walls of the slots 3, adjacent the outer face of the nut are provided with alining depressions forming ways 7 for the recep- Specification of Letters Patent.

Patented Dec. 8, 1914.

Serial no; 799,365. 7

tion of the opposite longitudinal edges of a cover 8. The cover 8 is constructed of spring metal, and is preferably arch-shaped in cross section, andxhas one of its ends incutine'the form of a V as indicated by the numeral 9. The cover is, of course, of a greater width than the distance between the walls provided by the oppositely disposed pairs of ways compress the longitudinal edges of the cross sectionally arched or rounded cover to permit of the same being inserted within the rails, and when the cover is fully inserted within the ways its V-shaped ends 9 will engage within the threads of the bolt 2 opposite the key-way 5 of the bolt, thus providing a space or passage for the reception of an instrument whereby the said key may be removed from its overlying and contacting position with one of the angular arms of the key 6 to permit of the withdrawal of the said key. The tension exerted by the opposite edges of the key is sufficient to effectively retain the key within the ways, and from the above description, taken in connection within the accompanying drawing the simplicity of the device as well as the advantages thereof will, it is thought, be perfectly apparent to those skilled in the art to which such inventions appertain without further detailed description.

Having thus described the invention, what I claim as new is:

1. A nut lock having a nut formed with a slot upon one of its faces which communicates with an angularly disposed depression provided in the bore of the nut, the bolt for the nut having a channel which is adapted to register with the depression, an angular key having its bit arranged within the registering depression and channel and its offset portion disposed within the slot, the opposite walls of the slot being formed with ways, a cross sectionally arch-shaped spring member adapted to be arranged within the It r, so that it is necessary to ios nut being provided with a longitudinal de pression Which enters its bore and the groove upon the face of the nut, a nut for the bolt having a channel adapted to register with the depression inthe nut, a key having its bit'arranged ithin the channel of the bolt and the depression of the nut and its shank arranged Within the Opening of the nut, a cross sec'tionally arched spring member adapted to be passed Within the Ways in the side Walls of the groove to retain the shank of the key Within the in presence of tWo Witnesses. I I V JOHN BALDWIlT. Witnesses WINFBED BRAZIL, E. L. MALONE.

Copies of this patent may he obtained for five cents each, by addressing the Commissioner of Patents. 1 I Wash1ngton,'3D.'0.? V 

